Issue of NAT for VPN

If I have a LAN or 10.1.1.0/24 and I want NAT all of the hosts in 192.168.1.0/24.  I really don't want to create the object for each unique host network, because it's just for a lot.  I just wanted to confirm by creating two objects then natting them must configure a NAT right one?

network object obj - 10.1.1.0

10.1.1.0 subnet 255.255.255.0

!

network object obj - 192.168.1.0

subnet 192.168.1.0 255.255.255.0

!

NAT (inside, outside) source static obj - 10.1.1.0 obj - 192.168.1.0 statick "remotely" destination "at a distance".

Now when the remote network need access to network 10.1.1.0/24 hosts they should just be able to access to?

10.1.1.1 will map to 192.168.1.1

10.1.1.2 will map to 192.168.1.2

10.1.1.3 will map to 192.168.1.3

and so on...?

In addition,

A test on my ASA home

Configuration

the object of the LAN network

10.0.0.0 subnet 255.255.255.0

network of the REMOTE object

subnet 10.0.1.0 255.255.255.0

network of the LAN - NAT object

10.0.100.0 subnet 255.255.255.0

LAN LAN destination - static NAT NAT (LAN, WAN) static source REMOTE

LAN remotely

ASA (config) # packet - trace tcp 10.0.0.10 LAN entry 1025 10.0.1.1 80

Phase: 3

Type: NAT

Subtype:

Result: ALLOW

Config:

LAN LAN destination - static NAT NAT (LAN, WAN) static source REMOTE

Additional information:

Definition of static 10.0.0.10/1025 to 10.0.100.10/1025

REMOTE CONTROL FOR LAN

ASA (config) # packet - trace entry WAN tcp 10.0.1.100 1025 10.0.100.10 80

Phase: 1

Type: UN - NAT

Subtype: static

Result: ALLOW

Config:

LAN LAN destination - static NAT NAT (LAN, WAN) static source REMOTE

Additional information:

NAT divert on the LAN of the output interface

Untranslate 10.0.100.10/80 to 10.0.0.10/80

-Jouni

Tags: Cisco Security

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    If you need any other information or explanation, just ask me.

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    I suspect something with the order of your NATing statement which is:

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    Your crypto ACL then referred to the NATted IP as NAT happens before encryption.

  • ASA - several IPS for VPN

    I'll put up Anyconnect to replace our customers of Cisco IPsec VPN, since it is end of life. A part of the process is to get an SSL certificate and a FULL domain name to use for this. I've got that and it is applied to the ASA very well. Now we don't get these warnings to the subject it is not not sure and such.

    The problem is that we use a non-standard port for the SSL VPN from 443 is already sent to an internal device. I have unused public addresses to the external interface of the ASA, but I don't know how I could use them. I would like to have a different IP address for SSL VPN, so I don't have to mess with the port forward that is currently in place. I read on proxy arp, but that looks like it could be a problem. I could have someone connect another cable to a different interface on the ASA (5512-X) and assign this static interface I want for the VPN, but I'm not sure it will work well. We have connections VPN site to site in place as well. Can I have the ASA listening on two different interfaces at the same time?

    Recap:

    IP 1 - address primary NAT, Site at tunnels put end here, some Cisco IPsec VPN terminate customer

    IP 2 - want to have all customers of Anyconnect connect here, to migrate all legacy Cissco IPsec clients until they are all over Anyconnect.

    Key is that I can not stop listening on IP 1 for site-to-site connections.

    Thoughts?

    Thank you!

    On the SAA, you cannot use the additional IPS for VPN.

    If tcp/443 is already used for an external server, then I would reconfigure the DNS entry for it to use the second IP address that must be sent to the internal server. You can then use the IP interface of the ASA for AnyConnect.

  • ASA 8.4 (1) source-nat over vpn site-to-site

    I'm setting up a tunnel vpn site-to-site and require nat for the local and remote side. The remote side will be nat to

    10.2.255.128/25 on their face before they reach our network, so I have to only source-nat our servers via the tunnel to them. Should I just do the static NAT, then let the whole subnet through the acl of valuable traffic as the config below? I don't think I should use twice a nat because I'm not trying to make the destination nat on the firewall. Servers with us will 10.2.255.128/25 and I would like to preserve it through the ASA.

    network of the ServerA object

    host 10.1.0.1

    NAT 10.2.255.1 static (inside, outside)

    network of the object server b

    host 10.1.0.2

    NAT 10.2.255.2 static (inside, outside)

    the object server c network

    host 10.1.0.3

    NAT 10.2.255.3 static (inside, outside)

    the LOCAL_SUBNET object-group network

    object-network 10.2.255.0 255.255.255.128

    the REMOTE_SUBNET object-group network

    object-network 10.2.255.128 255.255.255.128

    VPN_ACL list extended access permitted ip object-group LOCAL_SUBNET-group of objects REMOTE_SUBNET

    Thank you

    Your configuration is correct, but I have a few comments.  Remember that NAT occurs before the delivery of your servers will be translated into 10.2.255.2 and 10.2.255.3 and then sent through the tunnel, so your encryption field is correct.

    Is your internet firewall as well? What your servers out of the internet?  They will be translated to 10.2.255.2 and 10.2.255.3 and who will fail in internet routing is.  If these servers access the internet through the firewall, I would recommend a configuration like this for each of your servers:

    network of the ServerA_NAT object

    Home 10.2.255.1

    NAT static ServerA ServerA_NAT destination (indoor, outdoor) static source REMOTE_SUBNET REMOTE_SUBNET

    This will use destination basic NAT for traffic VPN and NAT everything to a public IP address for the internet traffic.  Of course, if this is not your internet connection firewall can do abstraction.

  • Traffic permitted only one-way for VPN-connected computers

    Hello

    I currently have an ASA 5505.  I put up as a remote SSL VPN access. My computers can connect to the VPN very well.  They just cannot access the internal network (192.168.250.0).  They cannot ping the inside interface of the ASA, nor any of the machines.  It seems that all traffic is blocked for them.  The strange thing is that when someone is connected to the VPN, I can ping this ASA VPN connection machine and other machines inside the LAN.  It seems that the traffic allows only one way.  I messed up with ACL with nothing doesn't.  Any suggestions please?

    Pool DHCP-192.168.250.20 - 50--> for LAN

    Pool VPN: 192.168.250.100 and 192.168.250.101

    Outside interface to get the modem DHCP

    The inside interface: 192.168.1.1

    Courses Running Config:

    : Saved

    :

    ASA Version 8.2 (5)

    !

    hostname HardmanASA

    activate the password # encrypted

    passwd # encrypted

    names of

    !

    interface Ethernet0/0

    switchport access vlan 20

    !

    interface Ethernet0/1

    switchport access vlan 10

    !

    interface Ethernet0/2

    switchport access vlan 10

    !

    interface Ethernet0/3

    Shutdown

    !

    interface Ethernet0/4

    Shutdown

    !

    interface Ethernet0/5

    Shutdown

    !

    interface Ethernet0/6

    Shutdown

    !

    interface Ethernet0/7

    switchport access vlan 10

    !

    interface Vlan1

    No nameif

    no level of security

    no ip address

    !

    interface Vlan10

    nameif inside

    security-level 100

    IP 192.168.250.1 255.255.255.0

    !

    interface Vlan20

    nameif outside

    security-level 0

    IP address dhcp setroute

    !

    passive FTP mode

    DNS lookup field inside

    DNS domain-lookup outside

    pager lines 24

    Within 1500 MTU

    Outside 1500 MTU

    mask 192.168.250.100 - 192.168.250.101 255.255.255.0 IP local pool VPN_Pool

    ICMP unreachable rate-limit 1 burst-size 1

    don't allow no asdm history

    ARP timeout 14400

    Global interface 10 (external)

    NAT (inside) 10 192.168.250.0 255.255.255.0

    Timeout xlate 03:00

    Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

    Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

    Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00

    Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

    timeout tcp-proxy-reassembly 0:01:00

    Floating conn timeout 0:00:00

    dynamic-access-policy-registration DfltAccessPolicy

    the ssh LOCAL console AAA authentication

    Enable http server

    http 192.168.250.0 255.255.255.0 inside

    No snmp server location

    No snmp Server contact

    Server enable SNMP traps snmp authentication linkup, linkdown cold start

    life crypto ipsec security association seconds 28800

    Crypto ipsec kilobytes of life - safety 4608000 association

    Telnet timeout 5

    SSH 192.168.250.0 255.255.255.0 inside

    SSH timeout 5

    SSH version 2

    Console timeout 0

    dhcpd dns 8.8.8.8

    !

    dhcpd address 192.168.250.20 - 192.168.250.50 inside

    dhcpd allow inside

    !

    a basic threat threat detection

    Statistics-list of access threat detection

    no statistical threat detection tcp-interception

    WebVPN

    allow outside

    SVC disk0:/anyconnect-win-2.5.2014-k9.pkg 1 image

    SVC disk0:/anyconnect-macosx-i386-2.5.2014-k9.pkg 2 image

    Picture disk0:/anyconnect-linux-2.5.2014-k9.pkg 3 SVC

    enable SVC

    tunnel-group-list activate

    attributes of Group Policy DfltGrpPolicy

    value of server DNS 8.8.8.8

    Protocol-tunnel-VPN IPSec l2tp ipsec svc webvpn

    tunnel-group AnyConnect type remote access

    tunnel-group AnyConnect General attributes

    address pool VPN_Pool

    tunnel-group AnyConnect webvpn-attributes

    enable AnyConnect group-alias

    !

    class-map inspection_default

    match default-inspection-traffic

    !

    !

    type of policy-card inspect dns preset_dns_map

    parameters

    maximum message length automatic of customer

    message-length maximum 512

    Policy-map global_policy

    class inspection_default

    inspect the preset_dns_map dns

    inspect the ftp

    inspect h323 h225

    inspect the h323 ras

    Review the ip options

    inspect the netbios

    inspect the rsh

    inspect the rtsp

    inspect the skinny

    inspect esmtp

    inspect sqlnet

    inspect sunrpc

    inspect the tftp

    inspect the sip

    inspect xdmcp

    !

    global service-policy global_policy

    context of prompt hostname

    no remote anonymous reporting call

    call-home

    Profile of CiscoTAC-1

    no active account

    http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address

    email address of destination [email protected] / * /

    destination-mode http transport

    Subscribe to alert-group diagnosis

    Subscribe to alert-group environment

    Subscribe to alert-group monthly periodic inventory

    monthly periodicals to subscribe to alert-group configuration

    daily periodic subscribe to alert-group telemetry

    Cryptochecksum:30fadff4b400e42e73e17167828e046f

    : end

    Hello

    No worries

    As we change the config I would do as well as possible.

    First, it is strongly recommended to use a different range of IP addresses for VPN clients and the internal network

    No VPN_Pool 192.168.250.100 - 192.168.250.101 255.255.255.0 ip local pool mask

    mask 192.168.251.100 - 192.168.251.101 255.255.255.0 IP local pool VPN_Pool

    NAT_0 ip 192.168.250.0 access list allow 255.255.255.0 192.168.251.0 255.255.255.0

    NAT (inside) 0-list of access NAT_0

    Then give it a try and it work note this post hehe

  • I forgot the password for VPN record how I opened

    First I have to buy the phone add password for VPN and I forgot how I fix this

    You can try to perform a repair of the system as it will be your phone factory reset or below, try to perform a factory reset, but in order to achieve a system repair

    Turn off your phone and unplug the PC (Hold to increase the volume and power for 10 seconds)
    Start PC Companion and select the area of support then updated my phone/Tablet then blue fix my phone/Tablet and follow the instructions on the screen - when you are prompted, always connect your phone off press and hold volume or back button - this should begin the process of repair or reformatting

    If you use Windows 8/8.1 or a 64-bit operating system and then adjust the settings for PC Companion and run in compatibility mode and choose Windows 7 or XP

  • Microsoft has never issued an update for the Win7 disk defragment utility?

    Microsoft has never issued an update for the Win7 disk defragment utility?  Thank you.

    Original title: Win7 updates

    To my knowledge, the Defragmenter from Windows 7 has not been maintained since the liberation.  You have a problem with it?

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